212100111210000 has 1600 divisors, whose sum is σ = 799314836576256. Its totient is φ = 47981875200000.

The previous prime is 212100111209993. The next prime is 212100111210079. The reversal of 212100111210000 is 12111001212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 50368107895 + ... + 50368112105.

Almost surely, 2^{212100111210000} is an apocalyptic number.

212100111210000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212100111210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399657418288128).

212100111210000 is an abundant number, since it is smaller than the sum of its proper divisors (587214725366256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212100111210000 is a wasteful number, since it uses less digits than its factorization.

212100111210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4450 (or 4429 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 212100111210000 its reverse (12111001212), we get a palindrome (212112222211212).

The spelling of 212100111210000 in words is "two hundred twelve trillion, one hundred billion, one hundred eleven million, two hundred ten thousand".